The minimum kinetic energy needed by an alpha particle to cause the nuclear reaction \( ^{16}_{7}\mathrm{N} + ^{4}_{2}\mathrm{He} \rightarrow \, ^{1}_{1}\mathrm{H} + ^{19}_{8}\mathrm{O} \) in a laboratory frame is \( n \) (in \( \mathrm{MeV} \)). Assume that \( ^{16}_{7}\mathrm{N} \) is at rest in the laboratory frame. The masses of \( ^{16}_{7}\mathrm{N} \), \( ^{4}_{2}\mathrm{He} \), \( ^{1}_{1}\mathrm{H} \) and \( ^{19}_{8}\mathrm{O} \) can be taken to be \( 16.006 \, \mathrm{u} \), \( 4.003 \, \mathrm{u} \), \( 1.008 \, \mathrm{u} \) and \( 19.003 \, \mathrm{u} \), respectively, where \( 1\,\mathrm{u} = 930 \, \mathrm{MeV}\,c^{-2} \). The value of \( n \) is ________.
